Thickening Hair Serum

Sephora customers often prefer the following products when searching for Thickening Hair Serum.

Discover the secret to voluminous locks with our thickening hair serum. Say goodbye to flat, lifeless hair and hello to full-bodied, bouncy tresses. Formulated with cutting-edge ingredients designed to plump each strand from root to tip, this hair serum will give you the luscious volume you've always dreamed of. Whether you have fine, thin hair or just want to add some extra oomph to your style, this serum is your go-to solution for achieving enviable thickness and body. Elevate your hair game and unleash a mane that commands attention with our Thickening Hair Serum.

shu uemuraIzumi Tonic Strengthening & Thickening Rice Water Hair Serum

ITEM: 2658805

Size: 3.04 oz / 90 mL

67 Reviews

$94.50

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After I washed and blow dry my hair with the Izumi tonic shampoo and hair mask, I blow, dried my hair out completely and use this thickening rice, water hair serum. ...I received a free sample in exchange for my honest feedback. Shu uemura thickening serum is amazing!!! I love the sleek and modern look of the bottle. ...Fantastic hair system for my fine hair!

What it is: A lightweight, thickening hair serum infused with Japanese-sourced rice water that hydrates, repairs damage, reduces split ends, and strengthens fragile hair while leaving hair soft and shiny.

Hair Type: Straight, Wavy, Curly, and Coily

Hair Texture: Fine and Medium

Hair Concerns:
- Shine
- Volumizing
- Damage, Split Ends, and Breakage

Key Benefits:
- Leaves hair 30x stronger and increases hair diameter*
- Reduces split ends up to 91 percent and protects against future damage*
- Leaves hair strands soft, smooth, and shiny

Highlighted Ingredients:
- Rice Water: Rich in amino acids, vitamins, and antioxidants to help restore damage and prevent future breakage.
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$62.00

I love this serum! It goes in and doesn’t make my hair greasy and it’s so lightweight. ...I use this every time I wash my hair and I have noticed that especially in photos, my hair seems to be thickening around my hairline.

What it is: A serum that promotes key scalp collagens while reducing shedding up to 90% — for youthfully thick, supple, resilient-looking hair. Results in as little as 30 days.


Hair Texture: Straight, Wavy, Curly, and Coily


Hair Type: Fine, Medium, and Thick


Hair Concerns:

- Dryness

- Flaky/Dry Scalp

- Thinning


Key Benefits: 
- Supports key hair-optimizing scalp collagens

- Promotes youthful-, supple-, elastic-looking strands

- Addresses thinning, brittleness, and shedding


$82.00

Complimentary from therootist: Recently I noticed that my hair is thinning and tried different scalp serums before this - not much has changed until this serum I noticed baby hairs are coming in. ...Solution for thinning hair...The Densifying Serum for Thin Hair from Rootlist is designed to target hair thinning by fortifying and thickening strands from the root to the tip.

What it is: A serum that is clinically shown to reduce signs of shedding, hair fallout, and thinning at the scalp for thicker, fuller-looking hair in as few as 90 days.

Hair Texture: Straight, Wavy, Curly, and Coily

Hair Type: Fine, Medium, and Thick

Hair Concerns:
- Color Safe
- Damage, Split Ends, and Breakage
- Thinning

Key Benefits:
- Clinically shown to reduce hair fallout and shedding by up to 85%
- Minimizes signs of thinning at the scalp for fuller-looking part lines and hairlines
- Feeds immediate, necessary nutrition to roots, scalp and hair for thicker, fuller, healthier-looking hair

Highlighted Ingredients:
- Patent-Pending Rootbiomic Ferment™: Contains nutrie

$77.00

hair routine staple...I've been using the briogeo Destined for density hair serum for a few weeks now and I've seen pretty good results paired with other thickening products also . ...I have noticed a gradual thickening of my hair after using this for 8 weeks once a day.

What it is: A lightweight scalp serum that is scientifically shown to increase hair density by up to 3X in as few as 16 weeks.

Key Benefits:
- Concentrated, visible-density-boosting complex promotes microcirculation to the scalp to help support hair growth
- Supports a healthy hair life cycle to increase overall appearance of hair density
- Microfluidic technology allows for fast, weightless absorption

Highlighted Ingredients:
- Density-Boosting Complex (Caffeine, CoQ10, and Green Coffee Oil): Stimulates the scalp to help boost follicle activity.
- Copper Peptides: Help support a healthy hair lifecycle.
- Biotin: Supports hair elasticity and helps strengthen hair follicles and strands.

What Else You Need to Kno

$106.00

A must have for your hair!...It has also started to thicken my hair. I love it....I love this product so much! I have fine, thin hair that I’ve been desperately trying to thicken and treat and this product has done just that.

What it is: A dermatologist co-developed hair serum that visibly improves hair density, addresses shedding, and hydrates the scalp to support the skin barrier.

Hair Texture: Straight, Wavy, Curly, and Coily

Hair Type: Fine, Medium, and Thick

Hair Concerns:
- Thinning
- Flaky, Dry Scalp

Key Benefits:
- Visibly improves hair density
- Promotes a balanced scalp
- Strengthens from the root

Highlighted Ingredients:
- GROActive+ Complex™: A patent-pending, AI-discovered, plant-based compound to address shedding.
- Spanish Microalgae: A prebiotic scalp superfood that hydrates to support the skin barrier.
- Plant Stem Cells: Rich in proteins to anchor strands at the root.

Products related to Thickening Hair Serum

Thickening Hair Products
“Conditioner that doesn't weigh down my hair or make it greasy! Thank you kerastase for always making products that make my hair feel so healthy”
Thickening Shampoo
“i don’t know if it actually thickens the hair much but it makes it so soft and gives it volume”
Thickening Hair Styling Products
“I like how well the Raise the Root Thicken & Lift Spray works. I have thin hair, but this product helps my hair feel thicker and with more volume”
Serums For Hair
“Kerastase is expensive and it's also a great value, if you want to get your hair healthy, it's basically the ICU for hair. I have used one full bottle of serum (about 2 months) and repurchased because I am seeing new hairs about 2 inches long under thinning long hair”
Serum Hair Oil
“this hair oil is literally so amazing, I use it right after I style my hair, and it makes such a big difference on my hairs health”
Hair Serum For Fine Hair
“I use purple hair products in the shower, but when I add this priming hair serum to damp hair, I swear I see it tone my blonde before my eyes”
Hair Thickening Shampoos
“This shampoo works pretty well for helping thicken the hair, without making it unnaturally poofy”
Natural Hair Serums
“This serum is amazing for hydration and has made my hair look so much healthier in general”
Serum Hair Products
“For the money, I don’t think it’s worth it and you can invest in other products for your hair regimen (hair mask, 8hr magic serum, hair oil for shine”
Hair Thickening Hairspray
“I instantly felt a difference in thickness/texture in my hair. I love to spray this when curling or styling my hair in a bun for increased volume”

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Hair Care Products, Thinning Hair & Hair Loss Products, Hair Styling Products, Best Products for Frizzy Hair 2025, Men's Hair Products & Men's Hair Care, Hair Treatments, SEPHORA COLLECTION Hair, Volumizing Mousses for Fine Hair, Hair Serums